Dr. Rogne is a medical doctor and researcher who focuses on perinatal, infectious disease and genetic epidemiology, with the former being at the core of his ongoing and future projects. To tackle clinically relevant questions, he applies modern methods ranging from instrumental variable analyses and inverse-probability weighting to mediation and genome-wide association analyses. Also, Dr. Rogne places emphasis on using high-quality data, in particular by use of data from population based cohorts and national registries, along with individual level data for meta-analysis in systematic reviews. Some of the ongoing research includes evaluating the genetic susceptibility to sepsis, the causal effect of vitamin B12 supplementation during pregnancy on offspring outcomes, and how being born preterm affects the risk of cardiovascular and infectious diseases in adulthood.